BookKeeper | BestHub

Ctrip Technology

May 19, 2022 · Backend Development

Design and Implementation of a Scalable Delay Message Service Using Apache BookKeeper

This article describes how the QMQ delay‑message service was refactored by separating business logic from storage, adopting Apache BookKeeper for high‑availability, zone‑aware disaster recovery, a configurable DNS resolver, a ZooKeeper‑based task coordinator, and a multi‑level sliding‑time‑bucket scheduler to achieve a stateless, elastic architecture.

BookKeeperDelay QueueDistributed Storage

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Design and Implementation of a Scalable Delay Message Service Using Apache BookKeeper

Tencent Cloud Developer

Jan 11, 2022 · Cloud Native

Apache Pulsar: Architecture, Topics, Producers, Consumers, and Storage

Apache Pulsar is a cloud‑native distributed messaging system that combines stateless brokers, a BookKeeper storage cluster, and ZooKeeper metadata to route messages from producers to consumers across scalable partitioned or non‑partitioned topics, supporting multiple subscription models, producer access modes, routing strategies, batching, acknowledgments, delayed delivery, and deduplication.

Apache PulsarBookKeeperConsumer

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Apache Pulsar: Architecture, Topics, Producers, Consumers, and Storage

High Availability Architecture

Dec 24, 2021 · Backend Development

Understanding Broker‑Side Message Acknowledgment and Cursor Management in Apache Pulsar

This article explains how Apache Pulsar brokers track consumer acknowledgment using cursors, describes persistent and non‑persistent subscription differences, details cursor metadata stored in ZooKeeper and BookKeeper, and outlines optimizations for handling message gaps, including RangeSet improvements and a new LRU‑based storage design.

Apache PulsarBookKeeperBroker

0 likes · 12 min read

Understanding Broker‑Side Message Acknowledgment and Cursor Management in Apache Pulsar